I'm going to go against the grain slightly here, but know that I'm not speaking without experience - I'm in my mid-30's and have had a lot of fertility treatment, so I know what it's like to really want a child.
You are so young at the moment, in your mid 20's. You have so much time.
It is better for a child to be raised by two parents (obviously provided that it is a functional, loving relationship). I'm not saying that it can't be done by a single person, or that it can't be done well. But generally, it will be better for everyone - especially the child - if there are two of you.
On your own, it will be harder for both you and your child. There is so much support that a partner can give you, and a second parent is a very important relationship for the child, too. Please don't underestimate that.
I know that people do it, and it can work really well. If you were older and had exhausted options of finding a partner to do this with then I'd be saying yes, of course, go for it.
But at your age, what's stopping you from spending another few years to see if you meet someone, then you could do it together? What is the rush to do it so soon?
In your position I would get some fertility checks done, just to make sure everything is OK, and then maybe give it 5 more years to see if you meet someone. Once you get into your 30's, if you are still single and certain you want to do this, that's a good time to start thinking about it.
Of course, it's your decision - but just please keep your potential child at the front and centre of your thoughts. Good luck whatever you decide.